My cat got in a fight! I feel so bad

I took him to my uncles house because I was afraid to leave him home because of the neiborhood dogs and he freaked out the whole car ride when he got to my uncles house my uncles cat visousky attacked him I broke up the fight immediatly. My cat doesnt have any injuries but that other cat clawed the blood out of me. My uncle put the other cat outside. My poor kitty seems really sad now he is not being his usual self. He is my bed buddy tonight (as usual but he is turned away from me with his head burried by the wall. I feel so bad for him. He has no scratches or bites but he seems very traumatized.